鼠标移动层

    .box
        {
            position: fixed;
            top: 180px;
            right: 300px;
            230px;
            height: 600px;
            background: #EEE;
            cursor: move;
        }

    <div id="drag" class="box">
            <div id="carbonads-container">
                <div class="carbonad">
                    <div id="azcarbon">
                    </div>
                    <table width="185px" style="float:left">
                        <tr>
                            <td style="padding-left: 10px;">
                                题号
                            </td>
                            <td style="padding-left: 20px;">
                                选项
                            </td>
                           
                        </tr>
                        <%for (int i = 1; i <= 20; i++)
                          { %>
                        <tr>
                            <td style="padding-left: 10px;">
                                <%=i %>
                            </td>
                            <td style="padding-left: 20px;">
                                <input type="radio" name="radioTopic<%=i %>" value="A" value1="<%=i %>" />A<input
                                    type="radio" name="radioTopic<%=i %>" value="B" value1="<%=i %>" />B<input type="radio"
                                        name="radioTopic<%=i %>" value="C" value1="<%=i %>" />C<input type="radio" name="radioTopic<%=i %>"
                                            value="D" value1="<%=i %>" />D
                            </td>
                     
                        </tr>
                        <%} %>
                        <tr>
                            <td colspan="2" height="10xp;">
                            </td>
                        </tr>
                        <tr>
                            <td colspan="2" style="text-align: center;">
                                <input style=" 130px" type="button" id="imgtijiao" value="提  交" /><br />
                             
                            </td>
                        </tr>
                    </table>
                      <div style="40; float:right"><input style="30px;height:200px; cursor:pointer" type="button" id="bt1" value="按&#13;&#10;住&#13;&#10;我&#13;&#10;拖&#13;&#10;动&#13;&#10;框" /></div>
                </div>
            </div>
        </div>

  $(document).ready(function (e) {
        $("#bt1").mousedown(function (e) {
            iDiffX = e.pageX - $(".box").offset().left;
            iDiffY = e.pageY - $(".box").offset().top;
            $(document).mousemove(function (e) {
                $(".box").css({ "left": (e.pageX - iDiffX), "top": (e.pageY - iDiffY) });
            });
        });
        $("#bt1").mouseup(function () {
            $(document).unbind("mousemove");
        });
    });